BLO-THRU Rotary Airlock

Key Features

  • Maximum number of blades in contact with body at one time without affecting throughput
  • Streamlined entry and discharge of conveying air through valve
  • Good throat opening at valve entry allowing high pocket filling efficiency
  • Compact design minimising headroom
  • Minimum clearance at rotor tips and sides with body
  • Robust body adequately stiffened to prevent distortion
  • Heavy shaft diameters minimising deflection
  • Outboard bearings for noncontamination - options for high temperature
  • Packing gland type seals with air purging option
  • Precision machining of components
  • Abrasive duty types

Blo-thru Rotary Airlocks meet the specific needs of the pneumatic conveying industry, a natural extension to the Rotary Airlock; both products are used to regulate the flow of dry powder, dust or granular product, while maintaining an airlock.

The Blo-thru Rotary Airlock has distinct advantages for the specialist as it introduces high pressure conveying air through the airlock body and rotor pocket ensuring – HIGH EFFICIENCY THROUGHPUT WITH LOW EFFECTIVE PRESSURE DROP.

This is achieved by the fact that more blades are in contact for longer periods with the valve body resulting in less air leakage – and by blowing through the rotor each rotor pocket is efficiently emptied.

The Rotolok range of blo-thru airlocks is robustly constructed with an emphasis on close tolerances and minimal eccentricities, making the unit suitable for the majority of pneumatic conveying applications and is available is sizes ranging from 5″ up to 18″.

 

  • Body

    Cast Iron or Stainless Steel precision machined

  • End Covers

    Cast Iron or Stainless Steel spigot located in body

  • Rotor

    Fabricated Mild or Stainless Steel fixed bladed open type

  • Bearings

    Ball type sealed for life – alternative high temperature to 750°F

  • Seal

    PTFE packing gland

  • Drive

    NEMA Frame C-Face TEFC motor mounted to parallel shaft gear reducer sidewall mounted to airlock body complete with taper lock chain drive in an enclosed guard.

All dimensions are in inches unless otherwise stated

*Side holes ø1/2”, end holes tapped M10

SIZE A A1 B B1 C D E F G H J K L M N P
5’’ 5’’ 5’’ 8’’ 8 ⅛’’ ½’’ 4 ⅜’’ 9 ½’’ 11 ½’’ 6 ¼’’ 9 ½’’ 12 ⅝’’ 8 ⅝’’ 7 ⅛’’ 28mm 3 ¾’ 8
8’’ 8’’ 8’’ 11 ¹³⁄₁₆’’ 11 ¹³⁄₁₆’’ ½’’ 6 ¼’’ 13 ⅜’’ 11’’ 7 ⅞’’ 11 ⅛’’ 13 ¾’’ 10 ¼’’ 8 ⅝’’ 28mm 5’’ 8
9’’ 7’’ 7 ⅞’’ 11 ¹³⁄₁₆’’ 11’’ ⅝’’ 7 ⅛’’ 13 ⅜’’ 12’’ 8 ⅞’’ 12 ⅞’’ 17 ⅛’’ 11 ¼’’ 9 ⅝’’ 40mm 6 ½’’ 8
11’’ 8 ⅞’’ 10 ⅝’’ 13 ⅝’’ 14 ⁹⁄₁₆’’ ⅝’’ 8 ⅛’’ 17 ⅛’’ 11 ⅝’’ 10 ³⁄₁₆’’ 14 ¼’’ 18 ⅛’’ 12 ⅝’’ 11’’ 40mm 7 ½’’ 8
14’’ 10’’ 13 ¾’’ 13 ¾’’ 17 ¾’’ ⁹⁄₁₆’’ 9 ½’’ 18 ⅜’’ 9’’ 12 ⅜’’ 16 ¾’’ 22 ⅜’’ 15 ¼’’ 13 ⅛’’ 50mm 9’’ 10
18’’ 12 ¼’’ 15 ¾’’ 16 ⅛’’ 20 ⅛’’ ⁹⁄₁₆’’ 11 ⅜’’ 19 ⅝’’ 7 ½’’ 13 ¾’’ 18 ⅛’’ 24 ⅝’’ 16 ⅝’’ 14 ½’’ 50mm 10 ⅝’ 10

All dimensions are in inches unless otherwise stated

*Side holes ø1/2”, end holes tapped M10

SIZE Q R S T W X Y Z AA AB AC AD AE AF AG HP
5" ⅜’’ 8mm 7mm 3 ⅛’’ 3 ⁹⁄₁₆’’ 6 ¹¹⁄₁₆’’ 3 ⁹⁄₁₆’’ 6 ¹¹⁄₁₆’’ 3 ⁹⁄₁₆’’ 5’’ 3 ¾’’ 2’’ ⁷⁄₁₆’’ ¾'' 3 ¹⁄₁₆'' ½
8" ½’’ 8mm 7mm 4’’ 5 ⅛’’ 10 ⅝’’ 5 ⅛’’ 10 ⅝’’ 5 ⅛’’ 7 ½’’ 5 ⅛’ 3’’ ⁷⁄₁₆’’ ¾'' 4 ⁵⁄₁₆'' ½
9" * 12mm 8mm 4 ⅜’’ 5 ⅛’’ 9 ⅞’’ 3 ¹⁵⁄₁₆’’ 9 ⅞’’ 5 ⅛’’ 8 ⅞’’ 4 ⁵⁄₁₆’’ 2 ⁹⁄₁₆’’ ⁹⁄₁₆’’ ¾'' 3 ¹⁵⁄₁₆'' 1
11" ½’’ 12mm 8mm 6 ¼’’ 7 ¹⁄₁₆’’ 13 ³⁄₁₆’’ 7 ¹⁄₁₆’’ 12 ¹⁄₁₆’’ 7 ¹⁄₁₆’’ 12 ⅛’’ 6 ¹¹⁄₁₆’’ 3 ⅞’ ⁹⁄₁₆’’ ¾'' 5 ⅛'' 1
14" ⁹⁄₁₆’’ 14mm 9mm 7 ⅞’’ 11 ¹³⁄₁₆’’ 16 ⁹⁄₁₆’’ 7 ¹⁄₁₆’’ 12 ⅝’’ 12 ⅝’’ 2@5 ²⁹⁄₃₂’’ 7 ⅛’’ 4 ⁵⁄₁₆’’ ⁹⁄₁₆’’ ⅞'' 5 ¹¹⁄₁₆'' 1 ½
18" ⁹⁄₁₆’’ 14mm 9mm 9’’ 12 ⅝’’ 18 ⅞’’ 8 ¹¹⁄₁₆’’ 14 ¹⁵⁄₁₆’’ 15’’ 2@5 ⁵⁄₁₆’’ 7 ⅞’’ 4 ¹⁵⁄₁₆’’ ⁹⁄₁₆’’ ⅞'' 6 ¹⁄₁₆'' 1 ½

All dimensions are in inches unless otherwise stated

SIZE A B C D E F G H J K L M
6" 6" 11 ¼’’ ½’’ 5 ½’’ 10 ⅝’’ 10 ⅛’’ 7 ⅝’’ 11 ¼’’ 14 ⅜’’ 10 ¼’ 8 ⅞’’ 1 ¼’
8" 8" 13 ½’’ ½’’ 6 ⁵⁄₁₆’’ 12 ³⁄₁₆’’ 9 ⅛’’ 8 ⅝’’ 12 ¼’’ 14 ⅜’’ 11 ¼’’ 9 ¾’’ 1 ¼’’
10" 10" 16’’ ⁹⁄₁₆’’ 7 ⅞’’ 15’’ 12’’ 9 ⁵⁄₁₆’’ 13 ⁹⁄₁₆’’ 17 ¼’’ 12 ⅝’’ 11 ³⁄₁₆’’ 1 ½’’
12" 12" 19’’ ¾’’ 9 ⁷⁄₁₆’’ 18 ⁵⁄₁₆’’ 9 ¾’’ 11 ⅛’’ 14 ¾’’ 19 ⅛’’ 13 ³⁄₁₆’’ 12 ⅜’’ 1 ½’’
16" 16" 23 ½’’ ¾’’ 11 ³⁄₁₆’’ 22 ³⁄₁₆’’ 6 ¾’’ 13 ½’’ 19’’ 22 ¼’’ 18’’ 15 ⅝’’ 2 ½’’

All dimensions are in inches unless otherwise stated

SIZE N O P Q R S T V W Y Z HP
6" 5 ⅝’’ 8 ⅞’’ 9 ½’’ ¼’’ ¼’’ 3 ⁵⁄₁₆’’ 2 ⅜’’ 2’’ 11 ⅝’’ 14 ½’’ ½
8' 5 ⅝’’ 8 ⅞’’ 11 ¾'' ¼’’ ¼’’ 3 ⁵⁄₁₆’’ 2 ⅞’’ 2 ½’’ 12 ⅝’’ 15 ½’’ ½
10" 6 ⅛’’ 12 1’’ 14 ¼’’ ⅜’’ ⅜’’ 4 ⅝’’ 3 ½’’ 3 ¹⁄₁₆’’ 13 ⁵⁄₁₆’’ 17 ⁵⁄₁₆’’ 1
12" 7 ¹¹⁄₁₆’’ 12 1’’ 17’’ ⅜’’ ⅜’’ 5 ⅝’’ 4’’ 3 ½’’ 15 ⅛’’ 18 ⅜’’ 1
16" 9 ¼’ 16 1 ⅛’’ 21 ¼’’ ⅝’’ ½’’ 7’’ 5 ⁹⁄₁₆’’ 5’’ 17 ½’’ 22 ⅜’’ 1 ½

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